How is Non-Volatile Memory able to store without power?

Volatile memory loses info when power is lost, but non-volatile is able to hold onto it. So, what makes this possible?

A traditional Hard Disk Drive uses patterns of magnetism that don’t rely on power to store data. The platter of a HDD is a disk that has millions of ‘areas’ that can be magnetized or demagnetized to register a ‘1’ or a ‘0’. This magnetized reading will stay stable for months or even years and when a drop in signal strength is detected, your hard disk will rewrite sectors that need a boost on an ad hoc basis.

Memory Installation Guides

Memory is one of the simplest upgrades that you can perform on your computer. To make it even easier our support team have created both installation videos and a written guide for you to follow.

Should you have any issues with your installation please see our FAQ page or contact our support team via live chat or at support@offtek.co.uk.

Lifetime Warranty

All OFFTEK memory is backed by our full lifetime warranty. We obsess over our products so you do not have to. Our team constantly strive to ensure that all our memory is of the highest quality but should you ever have any issues with your purchase you have the peace of mind that you can return your product for a replacement if the need arises.

Top Brands

We have close relationships with all of the top tier RAM memory manufacturers which enables us to provide a constant supply of the highest quality products. This in effect means compatible, reliable RAM and most importantly great prices, all backed by a limited lifetime warranty. If you require a specific brand of memory then please do not hesitate to contact one of our sales team.

Guaranteed Compatibility

Over the years we have taken immense care in creating one of the most in depth memory configurators. We do this to ensure that when you purchase a memory upgrade from OFFTEK you are confident that the upgrade is 100% compatible with your system.
Should you have any questions prior to ordering your upgrade we have technicians on hand via live chat, email or phone who will be able to answer any queries you may have.

We take the time to look into each machine to ensure that we offer all sizes and speeds that the machine is able to take not just the latest specification that has been released. We believe that offering all options for machines provides a 100% guarantee that the memory with function with your original memory module efficiently.

What businesses use ECC memory and why?

ECC stands for ‘Error Correcting Code’ and is used to describe a type of memory for business servers in industries where even the most minor corruption of data cannot be tolerated. This type of memory hardware is able to identify and correct ‘single bit memory errors’ that are produced by the server output.

Finance and BookmakingThere are various industries that require completely accurate real-time information in order to operate, as small errors could lead to the loss of millions of pounds. Should there be a fluctuation in the exchange rate in the currency markets, for example, and that information comes through corrupted, then important decisions would be made on erroneous information, possibly resulting in significant financial loss. ECC memory is used the bookmaking industry for similar reasons.

Why Do Errors Occur?First of all, it’s important to note that there are two distinct types of errors that are picked up by ECC memory. The first type are soft errors that happen when a specific set of data is read or written erroneously, sometimes relating to internal voltage variations on the motherboard.

The second type are hard errors, which are caused by physical factors that arise during its operation, such as voltage stress, physical stress or variations in temperature.

The Parity BitInside ECC memory, you’ll find an extra bit, known as the ‘parity bit’ and it’s this that enables the memory hardware to identify errors in the memory. Its ability to identify odd numbers in binary code is what enables it to do its work, as error-free code will always contain only even numbers.Parity bits don’t actually correct the code themselves, rather they just help the ECC memory to locate it and identify it.

Constant ScanningECC memory takes the parity bit and writes an encrypted code to its memory along with the data being stored and when that data is then read afterwards, this encrypted code needs to correlate precisely to that code that was previously written. If it doesn’t, as a result of being corrupted by external factors mentioned, then the hardware immediately corrects the error after comparing the data against what’s known as the ‘syndrome table’.

This process is a constant one, as it performs this role all the time that your PC or laptop is powered on, correcting corrupted data as it goes. It does this by using a specially designed algorithm that makes use of the parity bit data to continuously protect the business using it against damaging data errors.

If you are looking to place a quantity order or are buying on behalf of the public or private sector then please contact one of our designated account managers who will be able to deal with your requirements in more detail.

Unsure on your current memory specification or looking to purchase in quantity?

For any queries you may have please contact one of our experienced Memory Specialists via one of the following methods and they will ensure that any issue is resolved immediately and effectively.

Request a Callback

The advantages of adding more Ram Memory

Installing a memory module is one of the simplest upgrades that can be done to a computer

There is no configuration, no sitting around waiting for things to update and backup. It is simply plug and play!By adding more Ram memory into you laptop, desktop or server you will be doing the following:

Improving the overall performance of the machine

Allowing for increased multitasking

Extending the life of the machine

Producing faster boot times

Increasing productivity

Decreasing latency in gaming

Adding memory is the easiest upgrade available for your machine for the best increase in performance. If you are unsure on how to upgrade your machine no problem take a look at our detailed guides on how to install your new Laptop or Desktop Memory upgrade.

Compatibility Guarantee

Guaranteed Compatibility

Over the years we have taken immense care in creating one of the most in depth memory configurators. We do this to ensure that when you purchase a memory upgrade from OFFTEK you are confident that the upgrade is 100% compatible with your system.
Should you have any questions prior to ordering your upgrade we have technicians on hand via live chat, email or phone who will be able to answer any queries you may have.

We take the time to look into each machine to ensure that we offer all sizes and speeds that the machine is able to take not just the latest specification that has been released. We believe that offering all options for machines provides a 100% guarantee that the memory with function with your original memory module efficiently.

"I am happy with all aspects of this transaction ... except that I was upgrading to 8 GB RAM from 4GB and after I installed it I found that 32 windows 7 home can only 'see' 4 GB so it was a waste of time! I am now considering upgrading to 64.
This however is my ignorance and nothing to do with the excellent service I have received."

John from Hampshire

15th October 2016

"This company has great products at the right price."

Voytek from Essex

Verified Order

23rd September 2014

"everything as described - recommended"

Marius from Kent

Verified Order

16th January 2013

"Thanks!!!"

Maureen from Tyne and wear

24th December 2012

"Ordered through Amazon, this company delivered ahead of schedule - very impressed and would not hesitate to order from them again"

Why buy from offtek

Matched Ram upgrades for your specific model

Offtek provides matched upgrades for new and legacy machines. Every one of our RAM modules are tested to ensure that not only are they compatible with the machine but also that they perform in a wide range of different environmental conditions. This allows us to back our modules with a limited lifetime warranty.

Established in 1996, OFFTEK is trusted by many of the UK's best known household names as their number ONE source for ram upgrades.

Misson critical or movie night we have your upgrade sorted

Our team is made up of memory specialists with an average of 9 years experience in the RAM industry. We offer upgrades for not only the latest machines on the market but just as important those legacy machines that you need to keep running.

RAM is extremely important in ensuring your machine operates at its optimum performance. Our upgrades ensure that your computer will be performing at its best for years to come.

Fast Free UK Delivery

We offer FAST FREE UK Delivery on all orders with 96% of orders dispatched same day. For those that cannot wait we also offer faster delivery options including next day.

60 Day Money Back Guarantee

Not 100% happy with your order then return it to us under our No Quibble 60 Day Money Back Guarantee. Worried you might have made the wrong choice? With our no quibble return policy you can send it back to us and get a full refund up to 60 days after you've received your order. Whether you've picked the wrong product or just changed your mind you can send your order back to us and you'll get all your money back.

Twice Daily Price Checks

Our Price Promise commitment means that you can buy from us with confidence.

Our team works hard to ensure that you not only have peace of mind in the fact that the memory you order is 100% compatible but that our price is also the lowest for that product.

We check our prices daily against all our competitors to ensure that you are getting the best deal.

Experts On Hand

We have dedicated and highly trained experts with an average of 7 years experience. They are here to help you from purchase through to installation. We use a number of contact methods so you can speak to one of our specialists with ease.

Limited Lifetime Warranty

Feel confident that your memory will last a lifetime. Our limited lifetime warranty guarantees that if your memory should ever fail we will replace or repair the product free of charge provided that it is still manufactured. Please note that the lifetime warranty refers only to memory modules and not flash memory or storage products. Please see the individual 'product details' for warranties specific to each product.

100% Compatibility

Every memory product matched specifically to your machine is individually tested to guarantee reliability and 100% compatibility with your computer and operating system.

Online Since 1997

Offtek has been supplying memory online since 1997 with over 500,000 happy customers. Well, maybe the odd one does'nt like us ;)

We have always been passionate about providing our customers with the tools and information to update their systems in the simplest manner. Early in 1996 we took on the challenge to find the type of memory compatible with every computer ever built. Hence our first memory configurator was born. Our constant daily updates allow our customers to easily select the correct memory for their machines and that objective is as important today as it was when the idea was first broached across a kitchen table in central Birmingham

Large Stock Holding

As one the largest memory distributors in Europe, our large stock holding allows us to offer next day delivery on a wide range of products.

Environmentally Friendly

If you have no need for your old memory after you have upgraded to one of our larger/faster modules, we will recycle this for you free of charge under the WEEE directive.

Delivery Options

UK Delivery

Free UK Delivery (within 5 working days) £0.00

1st Class Delivery (within 1-2 working days) £0.95

Next Day (Before 1PM) £5.95

Next Day (Before 9AM) £15.50

Saturday Guaranteed £10.50

DHL Courier and same day delivery options are available on request.
More info

International Delivery

We now deliver to over 200 countries worldwide with DHL at incredibly low prices.